EP0813666B1 - Hutförmige anschlussmanschette für hausanschlüsse in kanalrohren - Google Patents

Hutförmige anschlussmanschette für hausanschlüsse in kanalrohren Download PDF

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Publication number
EP0813666B1
EP0813666B1 EP96907386A EP96907386A EP0813666B1 EP 0813666 B1 EP0813666 B1 EP 0813666B1 EP 96907386 A EP96907386 A EP 96907386A EP 96907386 A EP96907386 A EP 96907386A EP 0813666 B1 EP0813666 B1 EP 0813666B1
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EP
European Patent Office
Prior art keywords
shaped
rim
thermoplastic
hose
sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96907386A
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German (de)
English (en)
French (fr)
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EP0813666A1 (de
Inventor
Peter Michel
Thomas Voigt
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Trolining GmbH
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Trolining GmbH
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Publication date
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Publication of EP0813666A1 publication Critical patent/EP0813666A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B29C65/3428—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding said at least a single wire having a waveform, e.g. a sinusoidal form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/3464—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint characterised by the cross-section of said heated elements which remain in the joint or by the cross-section of their coating, e.g. being triangular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1226—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least one bevelled joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5224—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces
    • B29C66/52241—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces with two right angles, e.g. for making T-shaped pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/06—Methods of, or installations for, laying sewer pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/179—Devices for covering leaks in pipes or hoses, e.g. hose-menders specially adapted for bends, branch units, branching pipes or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729—Textile or other fibrous material made from plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729—Textile or other fibrous material made from plastics
    • B29C66/7294—Non woven mats, e.g. felt
    • B29C66/72941—Non woven mats, e.g. felt coated
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/06—Methods of, or installations for, laying sewer pipes
    • E03F2003/065—Refurbishing of sewer pipes, e.g. by coating, lining

Definitions

  • the invention relates to a method and a hat-shaped connecting sleeve for fluid-tight connection of house connections to a sewer pipe renovated with a thermoplastic inliner and a method for producing hat-shaped connecting sleeves.
  • a method for the renovation of damaged sewer pipes or the like. is known from WO 93/21398. After this procedure, a outer and an inner tubular liner in the damaged Channel pulled in. The inner liner points to his Knobs on the outside as a spacer to the outer inliner. The space between the inliners is made with a curable Mortar backfilled.
  • the renovation of sewer pipes with this Process is much cheaper than laying new ones Sewer pipes.
  • a problem, however, are house connections that usually open laterally into the sewer to be renovated.
  • DE-A-40 31 949 describes a method for sealing a Side entry into a renovated main sewer using a known multi-part device, which comprises a rigid tube, which at its end facing the main channel by means of a Gasket seals.
  • the sealing function is due to the additional Support ring achieved.
  • This is purely mechanical
  • a multi-part solution has serious disadvantages: one is the introduction of the individual parts in inaccessible Pipes are extremely problematic even with the help of robots. On the other hand, such solutions can only be rounded off with absolutely Cross sections of the side inlets are used. Also their use fails if there is damage in the infeed area because here the seal cannot perform its sealing function. After all, the pipe is not sealed against the side inlet, so that a backwardness occurs here.
  • GB-A 2 243 658 which forms the closest state of the art, is a method for sealing Known side inlets in a reorganized main pipe, initially a connecting element with the thermoplastic the main pipe is welded. Then in the connection pipe a resin-soaked subliner was introduced, which with the thermoplastic connector must be connected. This Connection is made by interposing several additional elements, which requires a lot of effort and from the outside inaccessible house connections is hardly feasible.
  • the object of the present invention is therefore a method and means for fluid-tight connection of house connections to one sewer pipe rehabilitated with a thermoplastic inliner To provide that with limited effort, even if not externally accessible house connections can.
  • the connection of the house connections should in particular easily using conventional robots, even in non-accessible areas refurbished sewer pipes o. dlg. to be possible.
  • connection sleeve a shaped as a tube, consisting of fibers or threads
  • Flat structures such as fleece, woven fabric, knitted fabric or the like
  • Has thermoplastic and which is tubular shaped fabric with one of its ends the brim overlapped in the area of the recess and welded to it is.
  • claim 2 or 4 of the invention has the brim in the area of Recess a molded or welded connection piece on, the sheet formed into a tube such as fleece, woven fabric, knitted fabric or the like made of thermoplastic material with one of its ends the molded or welded Connection piece at least partially overlapped and with this is welded.
  • the brim is preferably made of the same material as that thermoplastic liner of the renovated sewer pipe, in particular made of polyethylene.
  • the brim is, for example, by Deep drawing from a sheet that is smooth on both sides from the corresponding Material made, the thickness of the material before Deep drawing preferably between 1 and 5 mm, especially between 1.5 and 3 mm.
  • the brim expediently has one about round or possibly slightly oval in shape, with the diameter about 1.2 to 2 times the visible inner diameter of the house connection to be connected.
  • the shape and size of the visible cross section corresponds to the house connection, i.e. vertically in a circular, an elliptical for house connections that open diagonally into the sewer pipe Has cross section.
  • the brim is under supervision thus with house connections opening vertically into the sewer pipe a circular ring shape.
  • the invention in the region of the recess a connecting piece molded on, a few millimeters to a few centimeters in Points in the direction of the house connection and its inner contour, d. H. Diameter and direction. Possibly. can the connector also consist of a welded tube, where the length of the connecting piece also exceed a few centimeters can.
  • B. fleece made of thermoplastic preferably has a weight per unit area between 200 and 800 g / m 2 , in particular about 300 to 500 g / m 2 . It preferably consists of the same or similar material as the brim, preferably of polyethylene.
  • the thread thickness should be ⁇ 0.2 mm, nonwovens made of threads with a thickness ⁇ 0.1 mm are preferred.
  • the fabric preferably has a minimum degree of extensibility on. It is within the scope of the present invention if the fabric consisting of fibers or threads in addition to threads made of thermoplastic, also fibers or threads made of inorganic Has material such as carbon fibers or glass fibers, as far as the weldability is not hindered as a whole becomes. However, nonwovens, woven fabrics, knitted fabrics or the like are preferred. which are made exclusively of thermoplastic fibers or - threads exist.
  • the nonwoven material or the like For welding the fleece or the like to the brim or the Connection piece is according to an embodiment of the invention the nonwoven material or the like to a protrusion of about 1 to 5 mm covered with a metal sheet, ring or the like and then in the hot gas draw welding process with the brim or welded to the connecting piece.
  • a metal sheet, ring or the like By covering the nonwoven material or the like. This is prevented by the Heat supply curled up during welding and from the intended one Retracts the weld.
  • the welding of the tubular shaped fabric with one of its ends with the brim or the molded or welded connection piece by means of laser light by means of laser light.
  • the Material of the brim or that of the connection piece for the laser light be permeable, while on the other hand the material the fibers or threads absorb the laser light.
  • ND: YAG lasers with a wavelength can be used as lasers from e.g. 1064 nm and a power of 80W used are, these values are not critical.
  • the Brim welded to the thermoplastic liner.
  • the brim according to a preferred embodiment of the invention on its side facing the inliner a ring or spirally arranged heating coil.
  • the heating coil can be made from a simple Copper wire exist, which is superficially by welding with the Brim is connected.
  • a heating coil is preferred used that from a wire or preferably tubular Plastic profile with an outside diameter of 5 to 15 mm, in the near the surface of the actual Heating conductor, e.g. B. a copper braid, embedded in spiral form is.
  • the heating coil is heated electrically, first the material of the tubular or wire-shaped Plastic profile and then the surface areas of the Inliners and the brim in a highly viscous melt state be transferred.
  • the plastic material of the tubular or wire-shaped plastic profile as welding filler.
  • the heating coil is designed as a tubular profile, d. i.e., one has an annular cross-section, increases their rigidity during the welding process, so that the approximate at first circular or slightly oval cross-section is greatly flattened. This ensures that the welding pressure over the entire Length of the heating coil evenly distributed and control of the Weld seam is facilitated.
  • the heating coil and the brim of the connection sleeve transparent material is used, is done after Welding the actual heat conductor, d. H. e.g. B. the spiral arranged copper braid, through the material of the brim visible. As far as the material of the brim is slightly opaque, can visually control the quality of the welding very precisely become.
  • the brim with the thermoplastic inliner becomes the fabric made of fibers or threads for example with a thermosetting resin such as impregnated with an epoxy resin and, for example, in the inversion process inserted in the sewer pipe end of the house connection and pressed against the wall. So much for a robot is worked, the fabric, z. B. fleece, expediently with before entering the channel saturated with a thermosetting resin.
  • the brim on the inliner is turned inside out through an inflatable bellows, which at the same time the pressing of the soaked fleece on the wall of the house connection.
  • the connecting sleeve according to the invention can be easily used with robots known per se introduced the sewer pipe, welded there with the inliner and be glued to the house connection.
  • the sewer pipe 1 opens into a sewer pipe 1 with a nominal diameter of DN 400 mm House connection 2 with a nominal diameter of DN 150 mm.
  • the sewer pipe 1 is in accordance with the TroLining® method known in WO 93/21398 renovated with a thermoplastic liner 3 made of HDPE been. Using a commercially available robot, the House connection point 4 milled and the inliner 3 in the area of the house connection carefully cleaned.
  • connection sleeve 5 The one shown in Fig. 1 in section and in Fig. 2 in supervision Connection sleeve 5 is made of a 2 mm thick sheet manufactured using the deep-drawing process.
  • a circular Section of the web with an outer diameter of 250 mm heated to a temperature of 120 ° C and in a deep-drawing tool deformed.
  • the brim 6 takes on one level slightly curved shape to the inside diameter of the sewer pipe 1 corresponds (see Fig. 1).
  • connection piece 7 molded with a length of 15 mm.
  • the connecting piece 7 has an outer diameter of 148 mm, so that it fits into the house connection 2.
  • the heating coil 8 is ring-shaped the brim 6 is arranged.
  • the heating coil 8 consists of a tubular profile with a slightly oval cross-section (Fig. 1).
  • the heating coil 8 is also made of HDPE, in the near A copper strand is embedded in a spiral shape. The individual turns are at a distance of approx. 2 mm from each other, the heating coil 8 itself has a middle outer Diameter of 8 mm. To weld the heating coil 8 with the Brim 6, the heating coil 8 is first, as shown in Fig.
  • the fleece 9 formed into a tube consists of fine HDPE fibers. It has a weight per unit area of 400 g / m 2 . Due to its black coloring, it is absorbent for normal laser light.
  • the fleece 9 on the Inner wall of the connecting piece 7 fixed and slightly pressed.
  • the end 16 of the fleece 9 formed into a tube overlaps the connecting piece 7 by 15 mm.
  • the edges 11, 12 of the fleece 9 overlap by about 10 mm (Overlap area 10).
  • a welding machine type ND YAG with a power of 80 W.
  • the fleece 9 Before inserting the connecting sleeve 5 into the channel 1 the fleece 9 initially completely with a commercially available Soaked in epoxy resin. Then the connecting sleeve 5 by means of a robot in the sewer pipe 1 on the House junction 4 positioned. With the help of the robot the connecting sleeve 5 is then pressed onto the inliner 3. By applying an electrical voltage to the connection contacts 13, 14 of the heating coil 8 becomes the actual welding process initiated. As soon as the heating coil 8 is sufficiently heated, this deforms strongly elliptically, so that the welding process can be precisely controlled.
  • the heating coil 8 fused so that a homogeneous Welding has taken place.
  • the next step will be the fleece 9 impregnated with the epoxy resin into the house connection 2 turned in and by means of a bubble on the wall of the house connection 2 pressed. After the epoxy resin has hardened, the The bladder is drawn in again and the robot out of the sewer pipe 1 away.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Duct Arrangements (AREA)
  • Sewage (AREA)
EP96907386A 1995-03-09 1996-03-08 Hutförmige anschlussmanschette für hausanschlüsse in kanalrohren Expired - Lifetime EP0813666B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19508188 1995-03-09
DE19508188A DE19508188A1 (de) 1995-03-09 1995-03-09 Hutförmige Anschlußmanschette für Hausanschlüsse in Kanalrohren
PCT/EP1996/000987 WO1996028685A1 (de) 1995-03-09 1996-03-08 Hutförmige anschlussmanschette für hausanschlüsse in kanalrohren

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EP0813666A1 EP0813666A1 (de) 1997-12-29
EP0813666B1 true EP0813666B1 (de) 2001-12-05

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EP (1) EP0813666B1 (ja)
JP (1) JPH11502007A (ja)
AT (1) ATE210261T1 (ja)
AU (1) AU5103496A (ja)
DE (3) DE19508188A1 (ja)
WO (1) WO1996028685A1 (ja)

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GB9726154D0 (en) * 1997-12-10 1998-02-11 Petrotechnik Ltd Improvements in and relating to pipe fittings
US7523962B2 (en) 1997-12-10 2009-04-28 Petro Technik Limited Connection between a wall and a pipe
DE19933977C2 (de) * 1999-07-20 2003-12-24 Immo-Claudius Berg Verfahren zum Anbinden eines Anschlußrohres an ein mittels eines Reliningrohres aus Kunststoffmaterial saniertes Hauptrohr
JP2002113779A (ja) * 2000-06-09 2002-04-16 Asahi Tec Corp 管路の補修方法
DE10255201B3 (de) * 2002-11-12 2004-04-08 Condor Rohr-System-Technik Gmbh Aufspannwerkzeug für einen einschweißbaren Abzweigsattel für Kunststoffrohre
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DE102005019449A1 (de) * 2005-04-25 2006-10-26 Bodenbender Gmbh Formteil und Sanierungsverfahren

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Also Published As

Publication number Publication date
WO1996028685A1 (de) 1996-09-19
AU5103496A (en) 1996-10-02
DE19508188A1 (de) 1996-09-12
DE19680126D2 (de) 1997-12-11
JPH11502007A (ja) 1999-02-16
DE59608376D1 (de) 2002-01-17
ATE210261T1 (de) 2001-12-15
EP0813666A1 (de) 1997-12-29

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